Observation information
- date-obs: 2018-02-20
- time-obs: 02:47:17.784100000
- date-end: 2018-02-20
- time-end: 03:45:24.781100000
- obs_id: A04_112T01_9000001908
- exposure: 1758.46538576
- sourceid: LMC X-3
- observer: anuj
- ra_pnt: 84.73454
- dec_pnt: -64.08417
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_112T01_9000001908_12966cztM0_level2.evt
| modeM0/AS1A04_112T01_9000001908_12966cztM0_level2_quad_clean.evt
|
| Size (bytes) | 203,708,160 | 38,427,840 |
| Size | 194.3 MB
| 36.6 MB
|
| Events in quadrant A | 1,274,635 | 260,166 |
| Events in quadrant B | 1,985,581 | 230,718 |
| Events in quadrant C | 1,143,127 | 263,221 |
| Events in quadrant D | 1,607,107 | 242,534 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 48 | 0 |
| B | 0 | 48 | 0 |
| C | 0 | 48 | 0 |
| D | 0 | 48 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5190 | 2 |
| B | 0 | 7360 | 1 |
| C | 0 | 4886 | 1 |
| D | 0 | 6232 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 2307 | 27 | 1.170351% |
| B | 2307 | 399 | 17.295189% |
| C | 2307 | 20 | 0.866927% |
| D | 2307 | 121 | 5.244907% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
| Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
| A | 3488 | 2310 | 1 | 1 | 0.03% | 0.04% |  |
| B | 3488 | 2310 | 230 | 230 | 6.59% | 9.96% |  |
| C | 3488 | 2310 | 0 | 0 | 0.00% | 0.00% |  |
| D | 3488 | 2310 | 94 | 94 | 2.69% | 4.07% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
| Pixel properties |
Quadrant properties |
| Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
| A | 12 | 189 | 47286 | 769.16 | 297 | 291 | 61.1 |
| A | 1 | 162 | 27451 | 444.53 | 297 | 291 | 61.1 |
| A | 15 | 174 | 11576 | 184.7 | 297 | 291 | 61.1 |
| B | 4 | 239 | 763191 | 14416.98 | 273 | 267 | 52.9 |
| B | 0 | 219 | 115364 | 2174.99 | 273 | 267 | 52.9 |
| B | 3 | 64 | 34652 | 649.77 | 273 | 267 | 52.9 |
| C | 13 | 61 | 2169 | 27.39 | 292 | 294 | 68.4 |
| C | 0 | 207 | 1148 | 12.48 | 292 | 294 | 68.4 |
| C | 3 | 202 | 767 | 6.91 | 292 | 294 | 68.4 |
| D | 1 | 52 | 434450 | 6323.94 | 282 | 273 | 68.7 |
| D | 13 | 104 | 49664 | 719.4 | 282 | 273 | 68.7 |
| D | 8 | 195 | 18632 | 267.41 | 282 | 273 | 68.7 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
| Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |